L4D2 Clips that justify installing a Vocalizer

I currently use Helrika's - https://steamcommunity.com/sharedfiles/filedetails/?id=2406566627 Most of these older clips feature Ion's - https://steamcommunity.com/sharedfiles/filedetails/?id=698857882 Another great one, Vox's - https://steamcommunity.com/sharedfiles/filedetails/?id=410726312